Box-gluing apparatus.



Patented June 18, 1912.

um/Mica q/vmmow \ZOLUMHIA PLANOGRAPN co.. WASHINGTON. IL c.

GEORGE R. FOSDIGK, OF WINCHESTER, NEW HAMPSHIRE.

'BOX-GLUING APPARATUS.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed March 16, 1912. Serial No. 684,336.

To all whom it may concern:

Be it known that I, GEORGE R. F OSDIGK, a citizen of the United States, residing at Winchester, in the county of Cheshire and State of New Hampshire, have invented certain new anduseful Improvements in Box- Gluing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawing.

It has proved somewhat difficult to glue perfectly the corners of boxes of various kinds, particularly such Wood boxes as are known as lock-corner boxes, which for commercial reasons must be strong and yet must be made cheaply, or in other words rapidly and largely by automatic machinery. To apply the glue uniformly, without much waste, without internal smearing, so rapidly that the box pieces after receiving the glue may be assembled before any setting occurs, and to do this by means ofapparatus adapted for great variation in size of the boxes and practically unchangingby wear in use has not been found a simple problem.

The object of this invention is to secure all the results just suggested.

In the accompanying drawings,-Figure 1 is a vertical sectional view of so much of a gluing apparatus as is necessary to an understandin of the invention. Fig. 2 is a correspondlngplan view. Fig. 3 is a detail view looking inthe direction of the arrow of Fig. 2.

Box pieces or boards are usually carried in suitable hoppers having no novelty, and in order that the glue may not set before the boards are assembled, as well as to expedite the work generally, the opposite ends of each piece are provided with glue simultaneously by entirely similar mechanisms, one only of which will be described.

In the drawings, A, A represent two adjacent glue .receptacles which are heated and adjusted in relative position by devices without novelty herein claimed. The box pieces or boards B are advanced over the two receptacles by chain belts C in such manner that each momentarily comes to rest with its notched ends projecting over the glue receptacle, respectively. Glue is then applied by a channeled bar D normally lying in the glue near the bottom of the receptacle so that no drying of the glue thereon ever occurs. This bar is long enough and the receptacle is wide enough to suit the widest box pieces likely to be employed, and the provided with a narrow lip G extending itswhole length and the parts are so arranged that as the bar rises this lip lies slightly beyond the blocks end. Upon the side of the receptacle below the plane of the chains is an inclined block H serving as a sort of deflector to push from the side an arm I depending from the bar, which is thus rocked about its pivotal axis just before it reaches the box piece, bringing its upper surface into a plane parallel to the box piece and swingingits lip toward the end of the latter. This raising of the bar is brought about at proper intervals by means of a cam J rotated by a sprocket wheel K upon the same shaft L, and loose arm M projecting from the shaft F and resting upon the cam, the

position of the arm with reference to the shaft being regulated'by a screw N working in an arm 0 fixed to the shaft F and acting against the arm \Zl. Obviously, the lifting of the glue bar may be regulated by this screw. As the glue bar rises from the glue, glue fills the angular space. in front of its lip thus forming a body of glue which istriangular in cross section, there being practically no free glue at the margin opposite the lip. When the bar meets the box board, therefore, little or no glue is transferred by the marginal portion, but the lower side of the extreme end of the box board is plunged in glue and the end face of the board has between itself and the bars lip a body of glue as deep as the lip. Naturally a considerable amount of glue enters each notch in the board, and this amount is materially increased by the rocking of the bar which narrows the space between the li and the end of the box board and thus positively presses the glue into the notches where a considerable amount remains when the cam allows the glue bar to drop. The block on the wall of the receptacle compels the bar to rock in one direction, and gravity tends to return it to position instantly when it leaves the block, but in any case,when the arm strikes the bottom of the receptacle it i must be returned to initial position. The

lower face of the box board being the one against which the adjacent side piece of the box is pressed in assembling, the glue upon this face joins these-faces of the tongues to the bottoms of the notches in the companion piece, and the glue deposited in the notches as above described is spread by the tongues of the second board as the two are pressed together with the result that the entire meeting surfaces receive the necessary amount of glue and no more, provided that proper adjustment is made and the glue is of proper consistency.

Where a brush of any kind is employed to apply glue to the entire width of the board, the brush Wears, and if it be used ations in consistency of the glue.

What I claim is:

1. In apparatus of the class described, the combination with a glue receptacle and means for supporting a board adjacent to Q the receptacle, as long as the board, nornel against both faces of the lower angle of mally beneath the glue in said receptacle, and means for periodically moving said bar to position for bringing the glue in its chani the marginal portion of said board.

2. In apparatus of the class described, the combination with a glue receptacle and means for supporting adjacent thereto a board to receive glue, of a pivoted bar normally lying below the surface of the glue in said receptacle and provided with a lip in position to project alongside the edge face of the board when the body of the bar closely approaches the marginal side face thereof, means for moving the body of the bar into close proximity to said side face,

ceptacle below the surface plane of glue therein, a rock-shaft parallel to said bar and provided with rigid arms pivoted to the bar, means for actuating the rock-shaft to raise said bar to the margin of'said board, and means whereby the raised bar is rocked to force its lip toward the edge face of the board.

4. The combination with a glue receptaale and means for bringing box boards to position above the same, of a rock-shaft having rigid arms normally extending below the surface of glue in the receptacle, a bar, parallel to said shaft andto the margin of a board in position, arranged to swing toward said margin and return, as said rock-shaft moves back and forth, and means for varying the degree of the bars approach to said margin.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE R. FOSDICK.

Witnesses:

RALPH H. DICKINSON, EARLE H. CHAPMAN.

i 3 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

